Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR022801 |
Distributed Plant Hydraulic and Hydrological Modeling to Understand the Susceptibility of Riparian Woodland Trees to Drought-Induced Mortality | |
Tai, Xiaonan1; Mackay, D. Scott1; Sperry, John S.2; Brooks, Paul3; Anderegg, William R. L.2; Flanagan, Lawrence B.4; Rood, Stewart B.4; Hopkinson, Christopher5 | |
2018-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:7页码:4901-4915 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | The mechanistic understanding of drought-induced forest mortality hinges on improved models that incorporate the interactions between plant physiological responses and the spatiotemporal dynamics of water availability. We present a new framework integrating a three-dimensional groundwater model, Parallel Flow, with a physiologically sophisticated plant model, Terrestrial Regional Ecosystem Exchange Simulator. The integrated model, Parallel Flow-Terrestrial Regional Ecosystem Exchange Simulator, was demonstrated to quantify the susceptibility of riparian cottonwoods (Populus angustifolia, Populus deltoides, and native hybrids) in southwestern Canada to sustained atmospheric drought and variability in stream flow. The model reasonably captured the dynamics of soil moisture and evapotranspiration in both wet and dry years, including the resilience of cottonwoods despite their high vulnerability to xylem cavitation. Unrealistic predictions of mortality could be generated when ignoring lateral groundwater flow. Our results also illustrated a mechanistic linkage between streamflow and cottonwood health. In the absence of precipitation, normal streamflow could sustain 94% of cottonwoods, and higher streamflows would be required to sustain all of the floodplain cottonwoods. Further, the risk of mortality was mediated by plant hydraulic properties. These results underpin the importance of integrating groundwater processes and plant hydraulics in order to analyze the forest response to sustained severe drought, which could increase in the future due to climate change combined with increasing river water withdrawals. |
英文关键词 | plant hydraulics groundwater hydrology integrated modeling mortality risk riparian forest |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442502100040 |
WOS关键词 | ROCKY-MOUNTAIN RIVERS ; GROUNDWATER-FLOW ; CLIMATE-CHANGE ; LARGE-SCALE ; VEGETATION DYNAMICS ; INSTREAM FLOWS ; MISSOURI RIVER ; WATER-UPTAKE ; COTTONWOODS ; RESPONSES |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19946 |
专题 | 资源环境科学 |
作者单位 | 1.SUNY Buffalo, Dept Geog, Buffalo, NY 14260 USA; 2.Univ Utah, Dept Biol, Salt Lake City, UT 84112 USA; 3.Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA; 4.Univ Lethbridge, Dept Biol Sci, Lethbridge, AB, Canada; 5.Univ Lethbridge, Dept Geog, Lethbridge, AB, Canada |
推荐引用方式 GB/T 7714 | Tai, Xiaonan,Mackay, D. Scott,Sperry, John S.,et al. Distributed Plant Hydraulic and Hydrological Modeling to Understand the Susceptibility of Riparian Woodland Trees to Drought-Induced Mortality[J]. WATER RESOURCES RESEARCH,2018,54(7):4901-4915. |
APA | Tai, Xiaonan.,Mackay, D. Scott.,Sperry, John S..,Brooks, Paul.,Anderegg, William R. L..,...&Hopkinson, Christopher.(2018).Distributed Plant Hydraulic and Hydrological Modeling to Understand the Susceptibility of Riparian Woodland Trees to Drought-Induced Mortality.WATER RESOURCES RESEARCH,54(7),4901-4915. |
MLA | Tai, Xiaonan,et al."Distributed Plant Hydraulic and Hydrological Modeling to Understand the Susceptibility of Riparian Woodland Trees to Drought-Induced Mortality".WATER RESOURCES RESEARCH 54.7(2018):4901-4915. |
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